Context 6:17 Then a stone was brought and placed over the opening1 to the den. The king sealed2 it with his signet ring and with those3 of his nobles so that nothing could be changed with regard to Daniel.
[6:17]2sn The purpose of the den being sealed was to prevent unauthorized tampering with the opening of the den. Any disturbance of the seal would immediately alert the officials to improper activity of this sort.